there is no free energy, the energy is just energy as it always has been and it is free for all living creatures a priori, except the humans. the concept of free/ not free energy is created by the human mind. (remember, all mains and the earth were still free for the native americans just couple of centuties ago). Waiting for a fe device is so absurd, as WE should not have accepted the concept of nonfree energy/scarecity etc. on the first place...so the question is, are we ready to realise and accept our birth right again.
P.S. it is only up to us how far the changes will go and whether they will be good or negative (free energy could very well be complemented by a total global control system as some fiction has well described).